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wolverine [178]
3 years ago
5

The equation d= -6t + 10 represents the distance d, in miles, Ralph walks from the library to his house in t hours. His sister,

Joan, leaves the library right after Ralph. She rides her bicycle from the library to their house at a constant rate. The equation d = 14t represents Joan's bicycle ride where d, is the distance, in miles, and t is the time, in hours.
After how many miles will Joan meet Ralph walking to their house?
A. 2.5 miles
B. 7 miles
C. 18 miles
D. 28 miles
Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0
A: 2.5
Don’t know if I’m right
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Which number in the set {−250, 0, 372} is a natural number? (correct answers only pls, this test is important!)
andrey2020 [161]
Only 372 is a natural number  
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3 years ago
The variable z is inversely proportional to x when x is 3 z has the value 1.6666666666667. What is the value of z when x =12 ??
Harlamova29_29 [7]

The governing equation is z = k/x.

When x=3, z = 1 2/3, or z = 5/3. Find k: 5/3 = k/3. Then k = 5, and the

governing equation becomes z = 5/x.

Now if x=12,

z = 5/12 (answer)

4 0
3 years ago
The volume of a sphere is 2,240 yd^3. What will be the new volume in the dimensions are multiplied by 1/4?
Veseljchak [2.6K]

Answer:

34.98yd^3

Step-by-step explanation:

Volume of a sphere V=4/3πr3

Where V = 2240yd^3

π = 3.14

2240 = 4/3×3.14×r^3

2240 = 4.1866r^3

r^3 = 2240/4.1866

r^3 = 534.784

r = ( 534.784 )^1/3

r = 8.1169

Since each dimension is to be multiplied by 1/4

Hence, 1/4×8.1169

r = 2.029.

New volume will be

V = 4/3×3.14×2.029^3

V = 4/3×3.14×8.3558

V = 34.98yd^3.

8 0
3 years ago
How would I find the range pls give all steps
Volgvan
The range is the difference between the smallest and highest numbers in a list or set. To find the range, first put all the numbers in order. Then subtract (take away) the lowest number from the highest. The answer gives you the range of the list.
6 0
3 years ago
You go to dinner and decide to leave a 15% tip for your server you had 45 when you came to the restaurant. How much money would
Zepler [3.9K]

Answer:

$24.3

Step-by-step explanation:

Tip:

15% of 18 = 0.15 x 18 = 2.7

Cost of Dinner:

Tip + Cost of meal = total price

2.7 + 18 = 20.7

Money Remaining:

Starting value - Cost of Dinner = Amount remaining

45 - 20.7 = 24.3

-Chetan K

5 0
2 years ago
Read 2 more answers
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